Page 1
Acoustics & Sensor
SPECIFICATION
FOR ELECTRO-MAGNET DYNAMIC MICROPHONE
Customer
Date
Page
27 Jun.10
01 of 05
06TOTAL PAGE
www.be-star.com
Model Name
Product No.Customer P/N
Issue No.
Issue Date
BCM4520OSF-42
191108
B/TEM01.119A
10/06/27
RoHS
Approval:
1.Characteristics
2.Drawing
3.Measurement Circuit
4.Reliability Test
5.Packing
6.History change record
Drawn by
王焕焕
Checked by
徐 波
Approved by
王 平
Customer approved
BESTAR ELECTRONICS INDUSTRY CO.,LTD
No.199 HuangHe West Road.New district,ChangZhou,JiangSu Province,P.R.China
Tel: +86 519 88222567 Fax: +86 519 88222551
www.bestargroups.com info@be-star.com http://www.bestargroups.com
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6 5 34 2
1
H
BCM4520OSF-42
1. Characteristics
Test Condition (Vs=4.5V RL=2.2KΩ Ta=20 R.H.=65%)℃
G
No. Item Specifications
1 Sensitivity - 42 ±3dB (0dB=1V/Pa,1kHz)
2 Frequency Response 50-16kHz
3 Current Consumption 0.5mA Max.
F
E
4 Directional Omnidirectional
5 S/N Ratio more than 58dB
6 Standard Operating Voltage 4.5V
7 Operating Voltage 1.1V~10V
8 Sensitivity reduction within -3dB at 1.5V
9 Distortion 2%
H
G
F
E
10 Storage Temperature -40 °C to +70°C
11 Operating Temperature -30 °C to +60°C
D
D
★Frequency Resonse Curve
and shall not be used in whole or in part without its written content
This print and information there in are proprietary to Bestar Electronics Industry Co., Ltd.
B
+20
+10
0
-10
-20
Relative Response (dB)
-30
20 50
+3
-6
-3
+3
+8
0
CC
-3
-8
5k
Frequency(Hz)
10k500 3k1k100 200
20k
B
Date:
Drawn by:
A
Rev.
10.06.27
Date
6
A
王焕焕
Drawn
Checked by:
Note
5
Approved by:
www.be-star.com wu@be-star.com
4
10.06.27
王焕焕
徐 波
王 平
3
BCM4520OSF-42
Microphone
DRG NO:
B/TEM01.119A
2
A
Page:1 of 5
1
Page 3
6 5 4 3 2
1
H
BCM4520OSF-42
★Angular Response
G
F
2. Drawing
E
filter
120
90
60
150
30
Terminal 1
180
H
210
220
270
300
330
0
2.0±0.2
G
F
E
D
and shall not be used in whole or in part without its written content
This print and information there in are proprietary to Bestar Electronics Industry Co., Ltd.
3. Measurement Circuit:
C
FET impedance
Converter
B
Shield Case
A
A
10.06.27
Rev. Drawn
Date
6 5
ECM unit
王焕焕
Note
+
-
Terminal 2
Terminal 1
+
-
Terminal 2
Date:
Drawn by:
Checked by:
Approved by:
www.be-star.com wu@be-star.com
4 3 2
C:10μF
Output
Power Supply 4.5V
RL=2.2K
GND
10.06.27
王焕焕
徐 波
王 平
DRG NO:
4.5±0.1
BCM4520OSF-42
Microphone
B/TEM01.119A
Page:2 of 5
1
D
C
B
A
Page 4
6 5 4 3 2
1
H
H
BCM4520OSF-42
4.Reliability Test
G
F
E
D
and shall not be used in whole or in part without its written content
This print and information there in are proprietary to Bestar Electronics Industry Co., Ltd.
4.1 High temp.life test
Temperature +85 °C
Duration 100hrs
4.2 Low temp.life test
Temperature -40 °C
Duration 100hrs
4.3 Temperature cycle test
Cycles 10
-40 C
+85 C
1hrs 1hrs1hrs
+20 C+20 C
1hrs
4.4 Humidity Test
Temperature +40 °C
Relative Humidity 90~95%
Duration 48hrs
Tests above should be measured after leaving normal temperature for 6hrs.
4.5 Vibration Test
Vibration Frequency 10~55Hz
Amplitude 1.52mm/min
Direction 3(x.y&z)
Duration 2hrs each cycle(total 6 hrs)
4.6 Drop test
Height 1m
(Dropped to 20mm thick hardwood board without packing.)
Direction 3
4.7 Soldering Heat Shock
Temperature 260 ±5°c
Duration 2 ±0.5 sec
4.8 Terminal Mechanical Strength
Strength 1kg
Duration 1 min
G
F
E
D
CC
Notice:
All specifications must be satisfied in this condition.
B
A
A
Rev. Drawn
Sensitivity :Allowable deviation within ±3dB from initial sensitivity.
10.06.27
Date
6
Date:
Drawn by:
王焕焕
Note
5 4 3 2
Checked by:
Approved by:
www.be-star.com wu@be-star.com
10.06.27
王焕焕
徐 波
王 平
BCM4520OSF-42
Microphone
DRG NO:
B/TEM01.119A
B
A
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Page 5
6
5
4
3
2
1
H
BCM4520OSF-42
5. Packing
G
100±0.5
F
E
H
G
100±0.5
1000pcs
F
E
D
and shall not be used in whole or in part without its written content
This print and information there in are proprietary to Bestar Electronics Industry Co., Ltd.
C
B
A
A
10.06.27
Rev. Drawn
Date
王焕焕
225
±
0.5
±
0.5
52±0.5
105
D
C
270
Remark:
50 pcs per tray
20 trays for unit, 10 units per carton
B
480
240
Total 10000pcs per carton
Size: 43.5×17×17(cm)
Date:
Drawn by:
Checked by:
Note
56
Approved by:
www.be-star.com wu@be-star.com
4 3 2
10.06.27
王焕焕
徐 波
王 平
BCM4520OSF-42
Microphone
DRG NO:
B/TEM01.119A
A
Page:4 of 5
1
Page 6
6
BCM4520OSF-42
H
5 4
6. History change record
3
2
1
H
version
No.
G
F
A
Before
Change Items
After
Date
10.06.27 王 平
Drawn
王焕焕
Approved
G
F
EE
D
and shall not be used in whole or in part without its written content
This print and information there in are proprietary to Bestar Electronics Industry Co., Ltd.
C
B
A
A
10.06.27
Rev. Drawn
Date
6
10.06.27
王焕焕
徐 波
王 平
王焕焕
Note
Date:
Drawn by:
Checked by:
Approved by:
www.be-star.com wu@be-star.com
5 4 3 2
BCM4520OSF-42
Microphone
DRG NO:
B/TEM01.119A
D
C
B
A
Page:5 of 5
1
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